More on Trump’s narcissism (it’s a long piece):

[F]rom the perspective of the public at large, the debate over whether Trump meets the clinical diagnostic criteria for NPD—or whether psychiatrists can and should answer that question without directly examining him—is beside the point. The goal of a diagnosis is to help a clinician guide treatment. The question facing the public is very different: Does the president of the United States exhibit a consistent pattern of behavior that suggests he is incapable of properly discharging the duties of his office?

Even Trump’s own allies recognize the degree of his narcissism. When he launched racist attacks on four congresswomen of color, Senator Lindsey Graham explained, “That’s just the way he is. It’s more narcissism than anything else.” So, too, do skeptics of assigning a clinical diagnosis. “No one is denying,” [psychiatrist Allen] Frances told Rolling Stone, “that he is as narcissistic an individual as one is ever likely to encounter.” The president’s exceptional narcissism is his defining characteristic—and understanding that is crucial to evaluating his fitness for office.

I think it’s more that it’s his defining characteristic in combination with another one – his complete lack of filter or inhibition. It’s as if his narcissism overwhelms every other capacity he might have. It seems to me quite possible that, say, Reagan and Clinton and Bush 2 all think or thought every bit as highly of themselves as Trump does, but that isn’t all there is to them. They have other interests and other motivations. Trump…what does Trump ever even think about other than himself? He pays attention to other people only in their relation to him: flatterer or enemy. His “policies” might as well be flashy jewelry or a red convertible: all they’re about is Look At Me.

So what does his narcissism tell him? That he’s brilliant, and best at everything.

Trump claims to be an expert—the world’s greatest—in anything and everything. As one video mash-up shows, Trump has at various times claimed—in all seriousness—that no one knows more than he does about: taxes, income, construction, campaign finance, drones, technology, infrastructure, work visas, the Islamic State, “things” generally, environmental-impact statements, Facebook, renewable energy, polls, courts, steelworkers, golf, banks, trade, nuclear weapons, tax law, lawsuits, currency devaluation, money, “the system,” debt, and politicians. Trump described his admission as a transfer student into Wharton’s undergraduate program as “super genius stuff,” even though he didn’t strike the admissions officer who approved his candidacy as a “genius,” let alone a “super genius”; Trump claimed to have “heard I was first in my class” at Wharton, despite the fact that his name didn’t appear on the dean’s list there, or in the commencement program’s list of graduates receiving honors.

Plus…we can tell. His stupidity is obvious, so obvious you can’t miss it.

Here’s a man who holds rallies with no elections in sight, so that he can bask in his supporters’ cheers; even when elections are near, and he’s supposed to be helping other candidates, he consistently keeps the focus on himself. He loves to watch replays of himself at the rallies, and “luxuriates in the moments he believes are evidence of his brilliance.” In July, after his controversial, publicly funded, campaign-style Independence Day celebration, Trump tweeted, “Our Country is the envy of the World. Thank you, Mr. President!” In February 2017, Trump was given a private tour of the newly opened National Museum of African American History and Culture, and paused in front of an exhibit on the Dutch role in the slave trade. He turned to the museum’s director and said, “You know, they love me in the Netherlands.”

“Enough about me, let’s talk about you: what do you think of me?”

Plus he gots no empathy.

One of the most striking aspects of Trump’s personality is his utter and complete lack of empathy. By empathy, psychologists and psychiatrists mean the ability to understand or relate to what someone else is experiencing—the capacity to envision someone else’s feelings, perceptions, and thoughts.

The notorious lawyer and fixer Roy Cohn, who once counseled Trump, said that “Donald pisses ice water,” and indeed, examples of Trump’s utter lack of normal human empathy abound. Trump himselfhas toldthe story of a charity ball—an “incredible ball”—he once held at Mar-a-Lago for the Red Cross. “So what happens is, this guy falls off right on his face, hits his head, and I thought he died … His wife is screaming—she’s sitting right next to him, and she’s screaming.” By his own account, Trump’s concern wasn’t the poor man’s well-being or his wife’s. It was the bloody mess on his expensive floor. “You know, beautiful marble floor, didn’t look like it. It changed color. Became very red … I said, ‘Oh, my God, that’s disgusting,’ and I turned away. I couldn’t, you know, he was right in front of me and I turned away.” Trump describes himself as saying, after the injured man was hauled away on a makeshift stretcher, “‘Get that blood cleaned up! It’s disgusting!’ The next day, I forgot to call [the man] to say is he okay … It’s just not my thing.”

And then there’s the pathological absence of a conscience.

A second disorder also frequently ascribed to Trump by professionals is sociopathy—what the DSM-5 calls antisocial personality disorder. As described by Lance Dodes, a former assistant clinical professor of psychiatry at Harvard Medical School, “sociopathy is among the most severe mental disturbances.” Central to sociopathy is a complete lack of empathy—along with “an absence of guilt.” Sociopaths engage in “intentional manipulation, and controlling or even sadistically harming others for personal power or gratification. People with sociopathic traits have a flaw in the basic nature of human beings … They are lacking an essential part of being human.” For its part, the DSM-5 states that the “essential feature of antisocial personality disorder is a pervasive pattern of disregard for, and violation of, the rights of others that begins in childhood or early adolescence and continues into adulthood.”

Fits. Fits his attitude to migrants, fits the way he treats the other people in his administration, fits the way he talks about women, fits his complete refusal to grasp the concept “this thing I did was wrong.”

And there’s still a lot more in the piece. Plumbing the depths of Trump’s awfulness takes many words.